Energistic Systems is a company located in Golden, Colorado. Energistic Systems offers both photovoltaic (PV) systems, and solar thermal systems. The PV system integrates with the existing grid-tied system so that when there is an excess need for power beyond the solar capability, power can be received from the utility.[2] The SunTrac Tracking Concentrating Solar Thermal collector consists of panels that are placed on the roof that can heat water to 250 degrees fahrenheit.[3].